The cosmological constant and warped extra dimensions

被引：22

作者：

Collins, H ^{[1
]}

Holdom, B ^{[1
]}

机构：

[1] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

来源：

PHYSICAL REVIEW D | 2001年 / 63卷 / 08期

关键词：

D O I：

10.1103/PhysRevD.63.084020

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the behavior of a general gravitational action, including quadratic terms in the curvature, supplemented by a compact scalar field in 4+1 dimensions. The generalized Einstein equation for this system admits solutions which are compact in one direction and Poincare invariant in the remaining directions. These solutions do not require any fine-tuning of the parameters in the action-including the cosmological constant-only that they should satisfy some mild inequalities. Some of these inequalities can be expressed in a universal form that does not depend on the number of extra compact dimensions when the scenario is generalized beyond 4+1 dimensions.

引用

页数：9

共 24 条

[1] New dimensions at a millimeter to a fermi and superstrings at a TeV [J].